Permit quoted names for object destructuring in JavaScript syntax

Author: tmcw

mode/javascript/javascript.js

@@ -655,6 +655,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (type == "variable") cx.marked = "property";
     if (type == "spread") return cont(pattern);
     if (type == "}") return pass();
+    if (type == "[") return cont(expression, expect(']'), expect(':'), proppattern);
     return cont(expect(":"), pattern, maybeAssign);
   }
   function eltpattern() {

mode/javascript/test.js

@@ -226,6 +226,12 @@
      "  [keyword return] [variable-2 x];",
      "}");
 
+  MT(
+    "param_destructuring",
+    "[keyword function] [def foo]([def x] [operator =] [string-2 `foo${][number 10][string-2 }bar`]) {",
+    "  [keyword return] [variable-2 x];",
+    "}");
+
   MT("new_target",
      "[keyword function] [def F]([def target]) {",
      "  [keyword if] ([variable-2 target] [operator &&] [keyword new].[keyword target].[property name]) {",